506138370587147 has 4 divisors (see below), whose sum is σ = 507015560138136. Its totient is φ = 505261181036160.

The previous prime is 506138370587141. The next prime is 506138370587243. The reversal of 506138370587147 is 741785073831605.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 506138370587147 - 2³⁶ = 506069651110411 is a prime.

It is a super-2 number, since 2×506138370587147² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (506138370587141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 438594774629 + ... + 438594775782.

It is an arithmetic number, because the mean of its divisors is an integer number (126753890034534).

Almost surely, 2^{506138370587147} is an apocalyptic number.

506138370587147 is a deficient number, since it is larger than the sum of its proper divisors (877189550989).

506138370587147 is an equidigital number, since it uses as much as digits as its factorization.

506138370587147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877189550988.

The product of its (nonzero) digits is 118540800, while the sum is 65.

The spelling of 506138370587147 in words is "five hundred six trillion, one hundred thirty-eight billion, three hundred seventy million, five hundred eighty-seven thousand, one hundred forty-seven".